Adopting an MCA

The Adopt MCA function enables IBM® MQ to cancel a receiver channel and start a new one in its place.

If a channel loses contact, the receiver channel can be left in a 'communications receive' state. When communications are re-established the sender channel attempts to reconnect. If the remote queue manager finds that the receiver channel is already running it does not allow another version of the same receiver channel to start. This problem requires user intervention to rectify the problem or the use of system keepalive.

The Adopt MCA function solves the problem automatically. It enables IBM MQ to cancel a receiver channel and to start a new one in its place.